82873967450 has 24 divisors (see below), whose sum is σ = 154206958620. Its totient is φ = 33136387200.

The previous prime is 82873967447. The next prime is 82873967453. The reversal of 82873967450 is 5476937828.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82873967447) and next prime (82873967453).

It can be written as a sum of positive squares in 6 ways, for example, as 27348229129 + 55525738321 = 165373^2 + 235639^2 .

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82873967450.

It is not an unprimeable number, because it can be changed into a prime (82873967453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202685 + ... + 454784.

Almost surely, 2^82873967450 is an apocalyptic number.

82873967450 is a deficient number, since it is larger than the sum of its proper divisors (71332991170).

82873967450 is a wasteful number, since it uses less digits than its factorization.

82873967450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660002 (or 659997 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 82873967450 in words is "eighty-two billion, eight hundred seventy-three million, nine hundred sixty-seven thousand, four hundred fifty".